diff --git a/ics2mdwn.py b/ics2mdwn.py
index f8d907e..3347f57 100755
--- a/ics2mdwn.py
+++ b/ics2mdwn.py
@@ -121,7 +121,10 @@ class HugoConverter(Converter):
                 )
             if "CATEGORIES" in talk:
                 try:
-                    frontmatter["tags"] = [str(t) for t in talk.get("CATEGORIES").cats]
+                    vobject = talk.get("CATEGORIES")
+                    if hasattr(vobject, 'cats'):
+                        vobject = vobject.cat
+                    frontmatter["tags"] = [str(t) for t in vobject]
                 except Exception as exc:
                     logging.warning("Error parsing categories: %s", str(exc))
             if 'base' in frontmatter['tags']: